专利号:US-12091696-B2 优先权日:2022-08-10 标 题 :O-methyltransferase protein with highly specific catalytic function for multiple bias parent nuclei and encoding gene and use thereof 发明人:CHEN SHA; YU YUETONG 权利人:INST CHINESE MATERIA MEDICA CHINA ACADEMY OF CMS 摘要:The present disclosure provides an O-methyltransferase protein with a highly specific catalytic function for multiple benzylisoquinoline alkaloids (BIAs) parent nuclei and an encoding gene and use thereof. Compared with wild-type O-methyltransferase, the O-methyltransferase protein (SEQ ID NO: 2) shows an enhanced enzymatic activity and a wider substrate scope. The O-methyltransferase protein can catalyze O-methylation of backbones from three BIAs, including monobenzylisoquinolines (norcoclaurine, coclaurine, and N-methylcoclaurine), aporphines (asimilobine and N-methylasimilobine), and protoberberines (scoulerine and tetrahydrocolumbamine). Meanwhile, this O-methyltransferase protein is highly regioselective for each backbone. The O-methyltransferase protein catalyzes methylation of the monobenzylisoquinolines at 6-OH and 7-OH, is only active on 6-OH of the backbone of the aporphines, and mainly catalyzes methylation of the protoberberines at 2-OH. Moreover, the O-methyltransferase protein has a stronger catalytic activity and can be used as a biocatalyst for the semi-synthesis of related compounds.
专利号:CN-106085981-A 优先权日:2016-06-30 标题 :Methyltransferase gene involved in the synthesis of sanguinarine and chelerythrine in Boluohui and its application
专利号:CN-106119265-A 优先权日:2016-06-30 标题 :Cytochrome P450 enzyme gene involved in the synthesis of sanguinarine and chelerythrine in Boluohui and its application
专利号:CN-106047904-A 优先权日:2016-06-30 标 题 :The flavoprotein oxidase gene involved in the synthesis of sanguinarine and chelerythrine in Boluohui and its application
专利号:CN-114891840-A 优先权日:2022-05-23 标 题 :Application of lotus leaf O-methyltransferase and its encoding gene in the synthesis of benzylisoquinoline alkaloids and phenylpropionic acids
专利号:CN-114891840-B 优先权日:2022-05-23 标题:Lotus leaf O-methyltransferase and application of encoding gene thereof in synthesis of benzyl isoquinoline alkaloid and phenylpropionic acid compounds
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